Check for dots as separation

[koppor]

In case a changelog entry ends with a link, there should be a dot before

Example:

wrong:

We fixed an issue where [...] acquiring a file lock [#10452](https://github.com/JabRef/jabref/issues/10452)

right:

We fixed an issue where [...] acquiring a file lock. [#10452](https://github.com/JabRef/jabref/issues/10452)

Maybe, this rule should be explicitly enabled?

One could also implement it as "consistency" check. Currently, we have it mixed in our CHANGELOG.md -- https://github.com/JabRef/jabref/blob/main/CHANGELOG.md

[koppor]

Bump, because I see new contributors not following this rule (e.g., https://github.com/JabRef/jabref/pull/10748/files#diff-06572a96a58dc510037d5efa622f9bec8519bc1beab13c9f251e97e657a9d4ed)

[charphi]

I've just checked the changelog of keep-a-changelog and it mainly uses a dot for each entry.
But it is not always the case and issues links are located before the dot.

[koppor]

Some examples:

- v1.1 Russian translation (#410).
- Add basic documentation [#4](https://github.com/nbbrd/heylogs/issues/4)
- The last page of a PDF is now indexed by the full text search. [#10193](https://github.com/JabRef/jabref/issues/10193)
- We added the option to use System Preference for Light/Dark Theme [#8729](https://github.com/JabRef/jabref/issues/8729).
- We changed the order of the lists in the "Citation relations" tab. Cites are now on the left and Cited by on the right [#10752](https://github.com/JabRef/jabref/pull/10752)

Rendered

---

The approach of KeepAChangelog seems to be double braces. ( as outer brace and [ as inner brace (for the link). Would also be OK for me - even though it is (much) more work to type. At least, we would have the dots enforced. (And somehow consistent to computer science, where we demand the reference before the dot 😅)

[koppor]

We need OpenRewrite for CHANGELOG.md files 🤣🤣

[charphi]

Requires #17 and #224